iOS判断当前ViewController是push还是present方式显示的

exitStaticLib.m

- (void)exit{

//    NSLog(@"presentingViewController :%@",self.presentingViewController);

    //iOS判断当前ViewController是push还是present方式显示的

    if (self.presentingViewController) {

        [self dismissViewControllerAnimated:YES completion:nil];

    } else {

        if ([self.navigationController respondsToSelector:@selector(popViewControllerAnimated:)]) {

            UINavigationController *savedUinvc = self.navigationController;

            UIViewController *one = nil;

            one = [savedUinvc  popViewControllerAnimated:NO];

        }

    }

}